The Best Solar Battery In 2022

Home energy storage · Nov 11, 2022

If you want the best solar battery, there is no need to look any further. We looked into the best solar batteries on the market in 2022 and made a list of them. This list includes batteries from major manufacturers like Tesla, LG, FranklinWH, and others, so you can be sure you're getting the best quality product.

The Type of Solar Battery

Lead-acid Batteries

When it comes to solar energy, lead-acid batteries have been around for quite some time. Because of their construction, deep-cycle batteries may be repeatedly discharged to a low level without suffering permanent damage.

As opposed to lithium batteries, these are bulkier, heavier, and have a longer charging time. They also tend to die at an earlier age. Off-grid systems, especially vacation homes, frequently employ lead-acid batteries because of their low cost and long lifespan.

Lithium Batteries

The lower size of lithium batteries compared to lead-acid ones makes them a great fit for households with limited floor space. Moreover, they have greater battery life and faster charging times.

  • Lithium iron phosphate (LFP) and lithium nickel manganese cobalt oxide (NMC) are the two most common forms of lithium batteries.
  • Newer LFP battery chemistry allows for greater energy retention. The production cost of these batteries is greater due to their higher power rating.

Most lithium batteries are of the NMC type. They rely on tested technologies from the past. NMC batteries offer average power ratings but are more affordable to produce.

Solar Batteries: Why You Need Them

Are you thinking of going solar? If so, you might be thinking about whether or not you need a solar battery. The answer is it depends. You will need a solar battery if you want to store energy from your solar panels to use at night or on cloudy days. Solar batteries can also provide backup power in case of a power outage.

When choosing a solar battery, there are a few things to consider.


As the charging procedure consumes some of the battery's stored energy, measuring efficiency is done in terms of how much electricity can be utilized once the battery has been charged. Higher percentages suggest that charging results in less power loss.

Energy Storage Capacity

The capacity of a solar battery is the quantity of energy it can hold. Power consumption is quantified in terms of kilowatt hours (kWh). The battery's useable capacity is an indication of its potential energy output. Because the battery uses energy, this figure is lower than the battery's true capacity.

To maximize the effectiveness of your solar energy system, your battery capacity must be proportional to the quantity of energy it creates. The most efficient solar panels will produce more electricity than you consume, leaving you with extra juice to utilize later. If your solar battery is too little, you'll be throwing away usable energy, but if it's too huge, you won't be able to use its fullest capacity.

An Evaluation of Strength

The output of an electrical generator is measured in kilowatts per hour (kW). Peak and continuous power ratings exist.

Continuous power measures how much energy a battery can create at all times. The standard power output is 5 kW. Our assessments emphasize this number over peak power since it better evaluates how long your battery can power your house effectively.

Peak power is the largest amount of energy a battery can produce in a short time.

Low-capacity batteries with a high-power rating can give temporary power to electronics. High-capacity batteries with a low power rating can keep handheld electronics going for much longer.

Multi-Phase Power Supply

Direct current (DC) energy is what your solar power system produces, and you'll need an inverter to make it usable in your house. Power is converted to alternating current (AC) at the inverter, stored in DC form, and utilized in AC form. An energy conversion takes place just once in a DC-coupled system.

However, the efficiency of AC-coupled batteries is lower than that of DC-coupled batteries due to the energy loss that occurs during the conversion process. DC-coupled batteries can draw power from solar panels even when the grid is down, making them more efficient.

Concentration Of Emissions

A battery's depth of discharge (DoD) indicates how much power may be drawn from it before it begins to degrade. Standard lithium-ion battery capacities range from 80% to 100%, while lead-acid batteries typically have a 50% capacity. 

Since completely draining a battery over and over reduces its longevity, many manufacturers set limits on DoD to keep batteries usable for as long as possible.


Solar batteries often come with a 10-year guarantee, which is the standard in the industry. However, many warranties have early termination provisions such as cycle or throughput clauses. Try to find batteries with a greater limit in both of these categories.

Solar Panel Batteries That Work Best

IQ Enphase

When you purchase an Enphase IQ, you also get built-in system monitoring. In the event of a power loss, for example, its cutting-edge software will immediately switch to backup power based on your home's energy requirements.

Another key feature of Enphase is the throughput clause, which quantifies the maximum amount of energy your battery can produce during its service life. The smaller IQ 3 models and the bigger IQ 10 editions have throughput clauses of 9.8 MWh, with the latter being 29.4 MWh.

Tesla Powerwall

In 2015, Tesla, a well-known company for its electric automobiles, moved its attention to the solar market. Since then, the Tesla Powerwall has become one of the most widely used solar batteries available. The warranty on the most recent model, the Tesla Powerwall 2, is excellent.

The Powerwall 2 from Tesla is a single 13.5 kWh battery. However, your power requirements can be fulfilled by stacking numerous batteries. The battery employs NMC technology and provides 5 kW of continuous power.

Powerwall 2 has a 90% round-trip efficiency, which is 10% better than the norm. This battery's Depth of Discharge (DoD) is also 100 percent so that users can access its energy capacity.

Generac PWRCell

The DC-coupled Generac PWRCell battery. With a round-trip efficiency of 96.5%, it is among the most efficient solutions we've looked at.

The maximum continuous power consumption varies across models. Out of the four models, the M4 has 4.5 kW, the M3 model has 3.4 kW, the M6 has 6.7 kW, and the M5 has 5.6 kW.


The Sonnen Eco is a stackable, modular battery, so it may be expanded by adding more of the same size. It may be easily added to an existing solar setup because of its AC-coupled (alternating current) design. Batteries that run on direct current (DC) are more efficient but more challenging to set up.

These batteries outperform the more prevalent Lithium Nickel Manganese Cobalt Oxide (NMC) varieties in efficiency and lifespan.

The Sonnen Eco battery has a 90% overall efficiency. As a result, you can draw upon 90% of the battery's total capacity, with the remaining 10% being lost during the charging procedure.


The LG RESU solar battery comes in 6.5 kWh, 9.8 kWh, 13 kWh, and 16 kWh sizes. The real DO of these batteries is 90%. They are guaranteed for 10 years and can be used up to 4,000 times.


FranklinWH's latest solar battery, the LFP Ultra-Silence, is a simple-to-mount battery that offers 43 MWh aggregate throughput with 12 years of warranty. This innovative solar battery is perfect for small businesses and homeowners who want to voice their climate change concerns and protect themselves from the bills. Solar batteries are very efficient and can store up to 80% of the energy.

FranklinWH Solar Batteries: Why Should You Choose Them?

FranklinWH Solar Batteries are one of the most popular choices for those looking to use solar power to run their home or business. There are several reasons why this is the case, but the chief among them is that FranklinWH Solar Batteries are some of the most reliable and efficient solar batteries on the market.

When you choose FranklinWH Solar Batteries for your home or business, you can rest assured knowing that you are getting a product that is backed by a company with a long history of producing quality solar products. In addition, FranklinWH Solar Batteries are designed to be easy to install and require minimal maintenance, meaning that you can focus on using solar power to run your home.

How Do Solar Batteries Work?

Solar batteries store energy from the sun to provide power at night or during a power outage. Solar batteries convert sunlight into electrical energy, which is then stored in the battery.

The solar battery can release stored electrical energy when the sun is not shining. Solar batteries are a great way to have backup power, and they can be used with solar panels to make a complete solar power system.

Wrap Up

The best solar battery in 2022 will have a longer lifespan, higher capacity, and be more efficient than ever. They will also be more affordable, making them a great option for those looking to switch to solar power. Contact us today to get your best solar battery.

franklin home power